/*
 * Copyright (c) 2008-2024, Hazelcast, Inc. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.hazelcast.jet;

import com.hazelcast.cluster.Member;
import com.hazelcast.function.PredicateEx;

/**
 * Selects the members on which a specific job will run.
 *
 * @see JetService.JobBuilder#withMemberSelector(JetMemberSelector)
 * @since 5.5
 */
@FunctionalInterface
public interface JetMemberSelector extends PredicateEx<Member> {

    /**
     * Selects all lite members on the cluster.
     */
    JetMemberSelector ALL_LITE_MEMBERS = Member::isLiteMember;

    /**
     * Predicate to select members on which the job will run.
     */
    @Override
    boolean testEx(Member member);
}
